Are there alternatives to 1,1'-[(2,3-Dihydroxy-1,4-dioxo-1,4-butanediyl)bis(oxy)]di(2,5-pyrrolidinedione) (CAS: 77658-91-4) in synthesis?

There are several alternatives to 1,1'-[(2,3-Dihydroxy-1,4-dioxo-1,4-butanediyl)bis(oxy)]di(2,5-pyrrolidinedione) (CAS: 77658-91-4) in synthesis, including various diacid derivatives and other pyrrolidinedione analogs. Common alternatives include different dicarboxylic acids and their corresponding diesters, which can offer similar reactivity and functional groups for various applications. The choice of alternative depends on the specific requirements of the synthesis and the desired properties of the final product.